Right now it is South Australia, with the newly expanded Hornsdale Power Reserve (150MW/194MWh), but the mantle late next year will go to Victoria, where Hornsdale owner Neoen has committed to building a 300MW/450MWh big battery at Geelong, before the crown possibly returns to South Australia with AGL’s proposed “gigawatt hour” battery next to the Torrens Island gas generator.
What we can be sure of is that big batteries will get even bigger. AGL has talked of a 500MW battery at Liddell with as yet unspecified hours of storage, Neoen is talking of a 900MW/1800MWh big battery at the massive Goyder South wind and solar hybrid plant in South Australia, while Sun Cable may trump them all with a 20 gigawatt hour battery in the Northern Territory if its bold plan to supply Singapore with the world’s biggest solar farm becomes a reality.
Big might be beautiful, and able to steal the headlines, but the real significance of the most recent announcements – Neoen’s in Victoria and AGL’s in South Australia, as well as this week’s new AGL big battery proposal for the Loy Yang A brown coal generator in Victoria – is not just their size, but what they are able to do."
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